#!bin/bash

s1_hello(){
   echo "hello, world!"
}

s2_tell_who_i_am(){
   whoami
}

s3_which_distro_do_i_use(){
   cat /etc/*-release | grep "^NAME"
}

s4_view_my_cpu_arch(){
   uname -m
}

s5_show_first_scsi_disk_size(){
   lsblk -l | \grep disk | \grep '^sda ' |awk '{print $4+0}'
}

s6_show_main_memory_size_in_megabytes(){
   free -m | grep "Mem:" |awk '{print $2+0}'
}

